20081296360

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7070879}}^1$

素因数の和:7070961

約数の個数: 32

約数和(自身を含む): 45819302400

約数和(自身を除く): 25738006040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7070879, 14141758, 28283516, 35354395, 56567032, 70708790, 141417580, 282835160, 502032409, 1004064818, 2008129636, 2510162045, 4016259272, 5020324090, 10040648180, 20081296360]

約数ペア:

[(1, 20081296360), (2, 10040648180), (4, 5020324090), (5, 4016259272), (8, 2510162045), (10, 2008129636), (20, 1004064818), (40, 502032409), (71, 282835160), (142, 141417580), (284, 70708790), (355, 56567032), (568, 35354395), (710, 28283516), (1420, 14141758), (2840, 7070879)]